exam Maths Puzzle Numerical Ability

Find two positive real numbers that differ by 2 and have a product of 10.

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exam Other Question

Compute the dimension of span {v1,v2,v3} where

v1= 1 v2= 2 v3= 3
4 5 6
7 8 9
If y varies directly with x, and y = 44 when x = 4, find the constant of variation k.